Laserfiche WebLink
Drill cuttings will be logged continuously for characterization of contamination and soil type by <br /> a geologist using the Unified Soil Classification System. Descriptions of soils encountered and <br /> boring abandonment details will be recorded on boring logs and included in the assessment <br /> report. <br /> Soil samples will be collected from the bottom of each boring at a depth of approximately 17 <br /> to 18 feet below grade, 2 to 3 feet below the previous excavation bottom, using a split-spoon <br /> sampler with brass liners. The materials from one sample liner will be described and field <br /> screened with a photoionization detector (PID) for volatile organic content. A second liner will <br /> be sealed at each end with a Teflon sheet and plastic cap, secured with polyethylene tape, sealed <br /> ,r in air-tight bags, and preserved on ice pending shipment to a state-certified laboratory. <br /> Between sampling attempts, all sampling equipment will be cleaned using a three-bucket wash <br /> system. In this system, the liners and samplers are scrubbed with a brush in a bucket of tap <br /> water and detergent, rinsed in a second bucket of tap water, and given a final rinse in a bucket <br /> of distilled water. Any equipment which may come in contact with contaminated materials <br /> Al <br /> +- during field activities will be steam cleaned on-site prior to demobilization. Rinsate will be <br /> stored in approved drums pending laboratory_xesults—:_.. <br /> Samples will be collected, preserved, and transported under chain-of-custody in accordance with <br /> RESNA's Quality Assurance/Quality Control (QA/QC) Plan, soil sampling protocol (Appendix <br /> 111). The selected samples will be analyzed for benzene, toluene, ethylbenzene, xylenes <br /> (BTEX), total petroleum hydrocarbons as gasoline (TPHG), and total petroleum hydrocarbons <br /> as diesel (TPHD) by EPA methods 8020 and modified 8015. Applied Analytical Laboratory <br /> (DHS #1211) will perform the analyses. The detection limits at Applied Analytical for BTEX, <br /> TPHG, and TPHD, in soils is 0.005 part Per million (ppm), 1.0, and 10.0 ppm, respectively. <br /> The soil cuttings will be placed on and covered with 6 mil plastic sheeting and stockpiled on- <br /> site. Soil cuttings and rinsate will be properly disposed of in an appropriate manner after <br /> reviewing the analytical results and obtaining agency approval. <br /> AXRR12031PL 4 <br />